How to shortlist a social media agency

What to take away

You are picking a shortlist, not a winnerthree or four providers you can brief with confidence.
Set inclusion criteria first, covering sector experience, team location and the services you need.
Score every provider on the same rubric so the comparison survives a finance director's scrutiny.
Check the procurement regime for public-sector briefs and confirm delivery arrangements across England, Scotland, Wales and Northern Ireland.

Set inclusion criteria before you look at anyone

A longlist from search results is not a shortlist. When shortlisting a social media agency, decide what qualifies a provider, then filter. Criteria usually include a minimum retainer band, relevant sector work and who actually runs your channels.

For named UK examples, agencies you can research include We Are Social, Social Chain, VaynerMedia London, Born Social, The Social Element, Coolr and Croud. Public rate cards are rare; typical social-only retainers run from about £2,000 to £6,000 per month for one channel and £8,000 to £25,000 per month for multi-channel brand work, as market estimates rather than quotes.

Geography matters more than buyers expect. A firm registered in England may deliver UK-wide, but the location of the account team affects access, travel and day-to-day collaboration. Ask where the account team sits.

Market context helps you size the field. The ONS digital economy data covers the business and internet industries most agencies sit within, useful when you benchmark a fee against sector norms.

Score providers on a published rubric

Use the same weights for every provider, and set them before you start. Change them mid-process and the comparison stops meaning anything.

Weighted agency scoring rubric

Criterion

Sector fit: Relevant work, references
Team and location: Who does the work
Measurement: Reporting model, analytics access
Evidence of skill: Certifications, training records
Commercial terms: Fee, notice, renewal
Compliance: Data handling, ad rules

What you score

Sector fit: 20%
Team and location: 15%
Measurement: 20%
Evidence of skill: 15%
Commercial terms: 15%
Compliance: 15%

Weight

Sector fit
Team and location
Measurement
Evidence of skill
Commercial terms
Compliance

Criterion	What you score	Suggested weight
Sector fit	Relevant work and contactable references	20%
Team and location	Who does the work and where they sit	15%
Measurement	Reporting model, targets, analytics access	20%
Evidence of skill	Certifications and staff training records	15%
Commercial terms	Fee structure, notice period, renewal terms	15%
Compliance	Data handling, disclosure, ad rules awareness	15%

Evidence of skill is often the weakest column. Platform training is a reasonable proxy: LinkedIn runs an Ads certification programme that agencies use to show staff competence, though it proves training rather than results.

For advertising, check the Advertising Standards Authority (ASA) and the CAP Code (the UK Code of Non-broadcast Advertising and Direct & Promotional Marketing). For personal data, check the UK GDPR and Data Protection Act 2018; the Information Commissioner's Office (ICO) regulates data protection. The Digital Economy Act 2017 also amended direct-marketing provisions, so ask the provider to explain which rules apply to your work.

Gather evidence, not assurances

Evidence pack to request

Two contactable references
Sample monthly report, client data redacted
Named account lead
Written fee schedule
Read packs side by side

Be wary of any provider that will not name the person doing the work. Senior pitch, junior delivery is the market's most common complaint, and it is avoidable if you ask early.

For a structured way to grade those packs, the review methodology behind this directory explains how evidence is weighted, and you can lift it into your own scoring sheet.

Where England, Scotland, Wales and Northern Ireland diverge

Public-sector buyers should identify the procurement regime that applies before issuing a brief. The Procurement Act 2023 applies in England, Wales and Northern Ireland; Scotland has the Public Contracts (Scotland) Regulations 2015 and the Procurement Reform (Scotland) Act 2014. For procurements begun under the previous regime, the Public Contracts Regulations 2015 may still apply in England, Wales or Northern Ireland; confirm the applicable rules with the contracting authority.

For private buyers the practical difference is delivery. A provider with staff only in England may charge travel or remote-working premiums for work elsewhere in the UK. Put that in writing.

Check the provider's reporting model

Ask what happens in month one, month three and month twelve. A provider that cannot describe the reporting cadence in detail is unlikely to run it well. Insist on read access to your own analytics accounts.

Check the exit terms

Notice periods, data handover and ownership of creative assets belong in the agreement before signature. A shortlist that ignores exit terms is incomplete, because switching costs are where budgets quietly leak.

Compare like for like before you brief

The comparison methods guide explains how to normalise fees, scopes and reporting across providers that describe their services differently. Read it before you send a brief, so every provider answers the same question.

Once scored, take the top three to a paid discovery session. That small spend tests working style better than another credentials deck.

Common questions

How many providers should I shortlist?

Three or four is workable. Fewer than three gives no real comparison, and more than five slows the scoring without improving the outcome.

Should I rank providers by price?

No. Price is one column in the rubric. A cheap retainer with weak measurement usually costs more across a year than a mid-priced provider with clear reporting.

Do I need a different process in Scotland, Wales or Northern Ireland?

Only where the rules or the delivery model differ. Check public sector procurement rules, confirm where the account team is based, then apply the same rubric.